Wrench



PATENT OFFICE.

VICTOR A. ANDERSON, OF ELMWOOD PARK, ILLINOIS.

WRENCH.

Application filed March 30, 1921.

T 0 all whom it may concern:

Be it known that I, Vro'ron A. ANnnRsoN, a citizen of the United States,residing at Elmwood Park, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in Wrenches, of whichthe following is a specification.

This invention relates to improvements in wrenches. Gne object is toprovide a wrench of simple construction, positive and etlicient inoperation and one in which the parts can be readily assembled or easilyreplaced when broken or worn. Ea. further object is to provide awrenchin which the relatively movable jaw operates in a positive manner,without play, thus making it possible to obtain a firm purchase upon thework. A further object is to provide a wrench so constructed as to makeit appli cable to work that may be located in places ordinarilydifiicult of access with the ordinary wrench.

With the foregoing and other objects in view the invention consists inthe combination and arrangement of parts to be hereinafter fullydescribed, pointed out in the appended claim and illustrated in theaccompanying drawing which forms a part of this application and inwhich- Figure 1 is a sectional view of my wrench in side elevation.

Figs. 2 and 3 are cross sections taken, respectively, on the lines 2-2and 3-3 of F 1, said sections being turned at right angles thereto.

Like reference characters denote corresponding parts throughout theseveral views.

My wrench comprises the fixed and movable jaws 1, 2, the fixed jaw beingformed with the diminished edge 3 which terminates in the longitudinallyextending groove at formed in one lateral face of the jaw and parallelto its front edge; the movable jaw 2 being formed with a lip 5 extendingover the edge 3 of the jaw 1 and bent terminally D at right angles toits main portion and disposed in the said groove 4:, said lip serving asa guide for the jaw 2 in its movement. The jaws 1, 2 are formed with theparallel work-engaging surfaces 6, 7 preferably disposed at an obliqueangle to the jaw bodies.

Specification of Letters Patent.

Patented Dec. 13, 1921.

Serial No. 456,788.

, The jaw 2 is formed with the flattened shank portion 8 whichterminates in the shank portion 9. round in cross section, whichterminates in the threaded shank portion 10. The shank portion 8 isslidable in the flattened portion of a sleeve 11, said portion merginginto the sleeve portion 12 which is round in cross section. The saidflattened sleeve portion 11 is secured by the metal jacket 13 to thefixed jaw 1, two of the retaining bolts l-i engaging with said sleeve.The lower end of the sleeve is threaded exteriorly and connected by anut 15 to a tubular interiorly threaded rotary core 16 through which thethreaded end 10 of the aforesaid shank extends, said core beingconnected by the pin 17 to the knurled handle 18, one end of which abutssaid nut 15 and the opposite end r free termination extending beyond theshank portion 10 and core 16. By rotating the handle 18 the core 16 isrotated and the shank portion 10 moved longitudinally of the core thusmoving the jaw 2 toward or away from the aw 1. The core rotates freelywithin the nut 15.

lVh at is claimed is In a wrench, a iced jaw having its front edgediminished in thickness and an elongated groove terminatingsaid edge,said groove being parallel to one of the edges of said jaw, a movableoperative secured to said fixed jaw, said jaws being formed withparallel work-engaging surfaces disposed at an oblique angle to the jawbodies, a lip integral with said movable jaw and projected over thediminished front edge portion thereof and into the said groove. andmanually operable means for actuating said movable jaw, said meansincluding a threaded core in engagement with the shank of said movablejaw.

In testimony th at I claim the foregoing as my own I have hereto affixedmy signature in the presence of two subscribing witnesses.

VICTOR A. ANDERSON.

Witnesses Gus'rer F. GUsrArsoN, MAURITZ L. ERrKsoN.

